SwitchBlox - Small Ethernet Switch

BotBlox
SKU:
BB-SWB-E-1
Availability:
In stock and ready to ship.
$73.00
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Below are the available bulk discount rates for each individual item when you purchase a certain amount

  • Buy 10 - 19 and pay only $65.00 each
  • Buy 20 - 49 and pay only $58.50 each
  • Buy 50 - 99 and pay only $51.50 each
  • Buy 100 - 499 and pay only $40.20 each
  • Buy 500 - 999 and pay only $36.50 each
  • Buy 1000 or above and pay only $33.50 each
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The Ethernet Switch built for Compact Tech

Need an NDAA compliant version? Check out SwitchBlox NDAA.

SwitchBlox is a small ethernet switch with five 10/100MB ports, specifically designed for space-constrained and noisy environments.

With an overall size of 44.5mm (1.75 inches) by 44.5mm (1.75 inches), SwitchBlox is the smallest network switch in the world, making it perfect for robots, drones, or any space-limited networking application.

Diagram showing the small ethernet switch in a typical robotics network

Plug and play network switch

As an unmanaged network switch, it works straight out the box, all you need to do is...

  1. Apply a 5 to 60V DC supply.
  2. Connect your devices using the included cable set.
  3. It will automatically begin forwarding packets, no coding or setup needed.

Dimensions

We've squeezed all necessary Ethernet circuitry into SwitchBlox without making performance compromises. We use magnetics for improved signal integrity and electrical isolation between each ethernet bus.

Dimensions of the micro ethernet switch

Cabling

We use Molex Picoblade connectors on all our boards to keep them tiny. All boards ship with a cable set included, which consists of...

5 x PicoBlade to RJ-45 300mm (SKU: BB-PBRJ1-4-0.3)
Diagram of the SwitchBlox Data Cable
1 x PicoBlade to bare wires 300mm (SKU: BB-PBTL1-4-0.3)
Diagram of the Universal Power Cable

Ethernet Pinout

Below is a handy graphic that shows how we transition from a Molex Picoblade pinout to the standard RJ-45 ethernet cables. For 10/100 Mbps ethernet we use two differential channels, transmit and receive, for a total of four conductors.

Diagram showing the pinout of the 10/100BASE-T signals on the board and on the RJ-445 connector

Covered under the BotBlox Supply Guarantee Program

This board is covered by our supply guarantee, which guarantees availability and low lead times until at least 2028. Read more about the BotBlox Supply Guarantee Program.

Custom Cables

All our boards are shipped with the required 0.3 meter power and data cables included, so you do not need to purchase extra cables. However if you need custom cable lengths for your application, you can order those here

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Electronics > Networking
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Cool Components (UK distributor):
https://coolcomponents.co.uk/products/switchblox-a-tiny-5-port-ethernet-switch-designed-for-robotics
Digi-Key (International distributor):
https://www.digikey.com/en/products/detail/botblox/BB-SWB-E-1/13627011
Input Voltage Range 5-60V (reverse protected)
Power Consumption 300mW (Idle), 700mW (Max)
Output Voltage 5V, 2A (5V test results)
Ports 5 x 10/100Mb ports
Operating Temperature -10 to +80°C
Storage Temperature -65 to +150°C
Dimensions 44.5mm x 44.5mm x 11.3mm
HS Tariff Code 8517.62.00.20
US ECCN 5A991
Product Status and Lifetime Active, with a 5-Year Minimum Lifetime
Revision Subrevision Part number Release Date Notes
A 1 BB-SWB-A-1 01/06/2017 Initial release
B 1 BB-SWB-B-1 01/08/2019 Changed power headers from 2 pin to 5 pin, Added expansion header, Reduced crystal size, Reduced LED current
C 1 BB-SWB-C-1 01/07/2020 Replaced DCDC module with TPS54360 for improved reliability (max input voltage increased to 60V), replaced ATtiny202 with STm32 L011D4P6, Changed PoE circuitry to low side switch, Added PoE LEDs, Changed to 4 layer PCB
D 1 BB-SWB-D-1 01/09/2020 Added transient voltage protection, switched to newer TPS54360, Increased 5V LED brightness, Swapped ethernet IC, Removed PoE enable resistor by default
E 1 BB-SWB-E-1 01/09/2021 Replaced boot button with reset button, removed STM32, PoE circuitry

The Ethernet Switch built for Compact Tech

Need an NDAA compliant version? Check out SwitchBlox NDAA.

SwitchBlox is a small ethernet switch with five 10/100MB ports, specifically designed for space-constrained and noisy environments.

With an overall size of 44.5mm (1.75 inches) by 44.5mm (1.75 inches), SwitchBlox is the smallest network switch in the world, making it perfect for robots, drones, or any space-limited networking application.

Diagram showing the small ethernet switch in a typical robotics network

Plug and play network switch

As an unmanaged network switch, it works straight out the box, all you need to do is...

  1. Apply a 5 to 60V DC supply.
  2. Connect your devices using the included cable set.
  3. It will automatically begin forwarding packets, no coding or setup needed.

Dimensions

We've squeezed all necessary Ethernet circuitry into SwitchBlox without making performance compromises. We use magnetics for improved signal integrity and electrical isolation between each ethernet bus.

Dimensions of the micro ethernet switch

Cabling

We use Molex Picoblade connectors on all our boards to keep them tiny. All boards ship with a cable set included, which consists of...

5 x PicoBlade to RJ-45 300mm (SKU: BB-PBRJ1-4-0.3)
Diagram of the SwitchBlox Data Cable
1 x PicoBlade to bare wires 300mm (SKU: BB-PBTL1-4-0.3)
Diagram of the Universal Power Cable

Ethernet Pinout

Below is a handy graphic that shows how we transition from a Molex Picoblade pinout to the standard RJ-45 ethernet cables. For 10/100 Mbps ethernet we use two differential channels, transmit and receive, for a total of four conductors.

Diagram showing the pinout of the 10/100BASE-T signals on the board and on the RJ-445 connector

Covered under the BotBlox Supply Guarantee Program

This board is covered by our supply guarantee, which guarantees availability and low lead times until at least 2028. Read more about the BotBlox Supply Guarantee Program.

Custom Cables

All our boards are shipped with the required 0.3 meter power and data cables included, so you do not need to purchase extra cables. However if you need custom cable lengths for your application, you can order those here

Input Voltage Range 5-60V (reverse protected)
Power Consumption 300mW (Idle), 700mW (Max)
Output Voltage 5V, 2A (5V test results)
Ports 5 x 10/100Mb ports
Operating Temperature -10 to +80°C
Storage Temperature -65 to +150°C
Dimensions 44.5mm x 44.5mm x 11.3mm
HS Tariff Code 8517.62.00.20
US ECCN 5A991
Product Status and Lifetime Active, with a 5-Year Minimum Lifetime
Revision Subrevision Part number Release Date Notes
A 1 BB-SWB-A-1 01/06/2017 Initial release
B 1 BB-SWB-B-1 01/08/2019 Changed power headers from 2 pin to 5 pin, Added expansion header, Reduced crystal size, Reduced LED current
C 1 BB-SWB-C-1 01/07/2020 Replaced DCDC module with TPS54360 for improved reliability (max input voltage increased to 60V), replaced ATtiny202 with STm32 L011D4P6, Changed PoE circuitry to low side switch, Added PoE LEDs, Changed to 4 layer PCB
D 1 BB-SWB-D-1 01/09/2020 Added transient voltage protection, switched to newer TPS54360, Increased 5V LED brightness, Swapped ethernet IC, Removed PoE enable resistor by default
E 1 BB-SWB-E-1 01/09/2021 Replaced boot button with reset button, removed STM32, PoE circuitry